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Finding the Fourth Proportional to 310,902.40, 429,032.64 and 183,619.20

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Solution

The fourth proportional to 310,902.40, 429,032.64 and 183,619.20 is: 253,387.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,902.40 : 429,032.64 = 183,619.20 : x
  2. Step 2: Convert to fraction form
    310,902.40/429,032.64 = 183,619.20/x
  3. Step 3: Cross multiply
    310,902.40x = 429,032.64 × 183,619.20
  4. Step 4: Simplify right side
    310,902.40x = 78,778,630,130.69
  5. Step 5: Solve for x
    x = 78,778,630,130.69/310,902.40
  6. Step 6: Final answer
    x = 253,387.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.